Mariah Walton grew up struggling for every breath. Now 20, she awaits a heart and lung transplant, in part because of a congenital heart defect she said could have been fixed — if her parents had only taken her to a doctor.

Her parents refused to seek medical care because they believed she could be healed through prayer.

Now Walton believes it's time for her parents and people like them to take responsibility for endangering lives.